- Lorscheitter, Maria Luisa
- Lortet, Louis Charles Emile
- Lortet, M Louis
- Lortie, Christopher
- Lortie, Christopher J
- Lortie, J P
- Lortscher, Mathias
- Lortz, Ernest
- Loru, L
- Loru, Laura
- Lorusso, Nicholas
- Lorvelec, Olivier
- Lorz, Anne-Nina
- Lörz, Anne-Nina
- Los Angeles (Calif.). Dept. of Geology.
- Los Angeles Arboretum Foundation.
- Los Angeles Chamber of Commerce.
- Los Angeles County (Calif.). Department of Arboreta and Botanic Gardens.
- Los Angeles County (Calif.). Horticultural Commission.
- Los Angeles County Arboretum and Botanic Garden.
- Los Angeles County Museum of Natural History.
- Los Angeles County Museum.
- Los Angeles Plant Co.
- Los Angeles State and County Arboretum - Periodicals.
- Los Angeles State and County Arboretum, Historical Section,
- Los Angeles State and County Arboretum.
- Los Robles Co.
- Losa España, Taurino Mariano
- Losa Quintana, José María
- Losa, Francisco de, 1536-1624
- Losada, Juan M.
- Losada, Margarita Sánchez
- LoSapio, Carol.
- Loscerbo, Daniella
- Losch, Friedrich.
- Losch, Ilse
- Loschiavo, S. R.
- Loscos Bernál, Francisco.
- Loscos y Bernal, Francisco
- Loscos y Náguila, Cristóbal
- Lose Bros.
- Lose, Elizabeth Dietrich
- Losekann, M. E.
- Losekann, Marcos Eliseu
- Löseke, Johann Ludwig Leberecht, 1724-1757
- Losensky, B. John.
- Löser, H
- Löser, Siegfried
- Losey, L. B., Mrs.,
- Losey, L. B., Mrs.,
- Losey'S Iris Gardens,
- Losh, Albert Richard, 1883-
- Losi, Cristiano
- Losier, Frank E.
- Losiewicz, Jay
- Losinno, Beatriz N
- Losito, L J
- Losito, Michael P
- Loskot, Vladimir M
- Loskutova, Olga
- Losos, Danielle N
- Losos, J B
- Losos, Jonathan B
- Losos, Jonathan B.
- Loss, Ana
- Loss, Ana Carolina
- Loss, Ana Carolina Covre
- Loss, R D
- Losse, G F
- Losse, G. F.
- Lossen, W.,
- Lost Springs Nursery.
- Losty, Johannes Paulus, 1867-1931
- Lot, Antonio
- Lot, Antonio
- Lotan, James E.
- Lotfalizadeh, Hossein
- Lotfollahi, Parisa
- Loth, Daryl
- Lot-Helgueras, Antonio
- Lot-Helgueras, Antonio
- Lothelier, M A
- Lothers, John E. Jr.
- Lothhammer, Nívia
- Lothian, James.
- Lothian, John
- Lothian, T R N
- Lothner, David C.
- Lothrop, Dorrance B.,
- Lothrop, Oliver A.
- Lothrop, S. K. (Samuel Kirkland), 1892-1965
- Lothrop, W. P.
- Lotiev, Konstantin Y.
- Lotsy, Johannes Paulus, 1867-1931
- Lott, D A
- Lott, Denise
- Lott, Derek A
- Lott, E J
- Lott, Emily
- Lott, Emily J
- Lott, Henry J
- Lott, Ralph B
- Lott, Richard V. (Richard Vincent), 1899-
- Lott, William M.
- Lotta, Ingrid
- Lotte, Catherine J
- Lötter, Stefan
- Lötters, S
- Lotters, Stefan
- Lotti, Thomas.
- Lottici, M. E.
- Lottner, Eduard, 1826-1887
- Lottridge, Silas Alpha, 1863-
- Lotufo, G R
- Lotufo, Tito
- Lotufo, Tito M. C
- Lotufo, Tito Monteiro da Cruz
- Lotz, Chris
- Lotz, Edward.
- Lotz, Harry G
- Lotz, Jeffrey M
- Lotz, Leon N
- Lotze, Joerg-Henner
- Lotzkat, Sebastian
- Lotzkat, Sebastian
- Lou S. Darling Seed Company.
- lou zhi chen 楼之岑
- Lou, Lu-Huan
- Lou, Ya-Meng
- Lou, Yi-Lei
- Louangphan, Johnny
- Loubat, Alphonse.
- Loubat, Joseph Florimond, duc de, 1831-1927
- Loubet-Senear, Katy
- Loubiere, A
- Loucks, Ronald H.
- Loud, Joseph P.
- Louden machinery co., Fairfield, Ia.
- Louden Machinery Company.
- Loudenslager, Eric J
- Louderback, Allan L
- Louderback, George Davis, 1874-
- Loudiki, M
- Loudon Nurseries.
- Loudon, Mrs. (Jane) 1807-1858
- Loudon, B J
- Loudon, Catherine
- Loudon, J
- Loudon, J. C. (John Claudius), 1783-1843
- Loudon, Mary.
- Loudon, W. J.
- Louette, Michel
- Louge, Elena
- Lougheed, Cecilia
- Lougheed, Lynn W
- Loughin, Thomas M
- Loughlin, Ed.
- Loughlin, G. F. (Gerald Francis), 1880-1946
- Loughlin, Mark
- Loughman, Zachary
- Loughnan, F C
- Loughrey, Alan
- Loughridge, R. H. (Robert Hills), 1843-1917
- Loughry, Steven C.
- Louie Forman (Firm)
- Louis XIII, King of France, 1601-1643
- Louis XV, King of France, 1710-1774
- Louis XVI, King of France, 1754-1793
- Louis A. Byrne Nurseries, Inc.
- Louis Chenel'S Tung Nursery,
- Louis Clark Vanuxem Foundation.
- Louis Dank (Firm),
- Louis E. Scribner (Firm)
- Louis F. Drake (Firm)
- Louis F. Scribner (Firm)
- Louis Gerardi Nursery.
- Louis Graton (Firm)
- Louis Hahn & Son.
- Louis Hubach (Firm)
- Louis P. Butler & Co.
- Louis R. Fischer (Firm)
- Louis Smirnow (Nursery),
- Louis Stein, Janet
- Louis Vetault & Son.
- Louis Vetault and Son.
- Louis Vistica Nurseries,
- Louis W. Mittendorff (Firm)
- Louis, A
- Louis, A M
- Louis, Edward E.
- Louis, Jean
- Louis, Max
- Louise English (Firm)
- Louise, Jennie
- Louisiana Agricultural Experiment Station
- Louisiana Purchase Exposition Saint Louis, Mo.) 1904-
- Louisiana State Board of Agriculture and Immigration.
- Louisiana State University (Baton Rouge, La.). Division of Continuing Education.
- Louisiana State University (Baton Rouge, La.). Museum of Zoology.
- Louisiana State University and Agricultural and Mechanical College.
- Louisiana state university and agricultural and mechanical college. Agricultural extension dept.
- Louisiana State University And Agricultural And Mechanical College. Division of Agricultural Extension,
- Louisiana State University and Agricultural and Mechanical College. Division of Continuing Education.
- Louisiana.
- Louisiana. Board of commissioners for the protection of birds, game and fish.
- Louisiana. Board of commissioners for the protection of birds, game and fish.
- Louisiana. Committee to investigate the affairs of the New Orleans park commissioners.
- Louisiana. Crop Pest Commission.
- Louisiana. Dept. of Agriculture and Immigration.
- Louisiana. Dept. of agriculture and immigration.
- Louisiana. Dept. of Education.
- Louisiana. Legislature. House of representatives. Committee to investigate the affairs of the New Orleans park commissioners.
- Louisiana. State commission, Louisiana purchase exposition, 1904.
- Louisiana. State Commission, Louisiana Purchase Exposition, 1904.
- Louisiana. State Land Office.
- Louisiana. Board of Commissioners for the Protection of Game and Fish.
- Louisiana-Pacific Corporation. Ketchikan Division.
- Louis-Maldonado, Miguel
- Louis-Marie, Father
- Louis-Marie, Père
- Louis-Seize, Gerry
- Louisville Nurseries.
- Louisville Seed Co.
- Louisville Seed Company.
- Louisville Stock Farm.
- Loukashkin, A
- Loukashkin, Anatole S
- Loumont, C
- Loumont, Catherine
- Lounaci, Abdelkader
- Lounibos, Leon Phillip
- Lounsberry Gardens.
- Lounsberry, Alice, 1872-1949
- Lounsbery, William John.
- Lounsbury, Charles Pugsley, 1872-
- Lounsbury, Fred Clark, 1857-
- Lounsbury, Lori
- Lounsbury, Sarah
- Loup, Caroline
- Louppova, Nora E.
- Lourandos, Harry
- Lourdes Tapia Benoit
- Loureiro Barrella, Marcelo
- Loureiro, Arthur A.
- Loureiro, Arthur Araújo
- Loureiro, Bruna Roque
- Loureiro, João de, 1710-1791
- Loureiro, José Marques, 1830-1898
- Loureiro, Juan Pablo
- Loureiro, Livia